Breast-pump.



J. T. EMOTT.

BREAST PUMP.

APPLICATION FILED SEPT. 9. 1912.

Patented Jan. 23, 1917.

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smarts JAMES TUCKERMAN EMOT'L, OF MGRBISTGEVN, NEW JERSEY, ASSIGNCE ".530 PURITAN GHEMICAL COMPANY, A CORPORATION CF MASSACHU$ETTS.

BREAST-PUMP.

Application filed September 9, 1912.

To all whom it may concern:

Be it known that 1, James T. EMoT'r, a citizen of the United States, residing at Morristown, in the county of Morris and State of New Jersey, have invented certain new and useful Improvements in Breast- Pumps, of which the following is a specification.

The object of my invention is to provide a simple, durable and convenient form of breast pump which may be readily cleaned, easily manipulated and inexpensively manufactured.

With the above and other objects in view my invention consists in the construction and arrangement of parts hereinafter described and illustrated in the accompanying drawing in which,

Figure l is a central longitudinal section through my improved pump complete; Fi 2 is a rear elevation thereof; Fig. 3 is a detailed section on an enlarged scale showing the construction of the plunger; and, Fig. L is a side elevation showing a slightly different form of pump.

Referring to the drawings in detail and more particularly to Figs. 1, 2 and 3 thereof, it will be seen that my improved device comprises a milk receptacle 1, a flaring o1 funnel-shaped mouth 2, and a pump barrel 5. The mouth 2 is joined to the receptacle by means of a short neck 4c. It will be noted that these three parts are all formed integral with one another, preferably being molde from a single piece of glass. The receptacle 1 is preferably spheroidal in shape and the conical mouth 2 extends outwardly from oneside of the receptacle, while the pump barrel communicates with the opposite side. It will be noted that the axis of the conical piece extends through the center of curvature of the receptacle and also that the point of juncture between the pump barrel and the receptacle coincides with the center of curvature.

One of the important features of my im proved pump consists in arranging the pump barrel 5 at an angle to the axis of the conical mouth, and also at an angle to the line joining the center of curvature on one side of the receptacle with the center of curvature on the other side. The angle illustrated in the drawing is shown at 30, but obviously anv other suitable anglemay be employed. The purpose of this arrange- Specification of Letters Patent.

Patented Jan. 23, 1991?.

Serial no. 719,397.

ment is to bring the handle of the pump into a more convenient position to be operated by the person to whom the device is being applied. A trough or spout 3 is formed in the flaring mouth and serves as an eliicient means for directing the flow of the liquid as it is poured from the receptacle. This trough or depression is not made so deep or pronounced as to interfere with the proper working of the pump.

The outer end of the pump barrel is closed by means of a screw cap 6 through which passes a piston rod 7 having at its outer end, an operating handle 8. The piston itself preferably consists (see Fig. 3) of a cylinder 9 of rubber or other soft material, which is clamped between a collar 7 formed on the piston rod '4', and a washer 7 held in position by means of a thumb screw 10, taking into an opening in the end of the piston. Any other suitable construction of piston may be employed if desired. F or the sake of convenience, I preferably locate the spout 3 not at the bottom but at the side of the device, as shown in Fig. 2. In order to determine the amount of liquid contained in -the receptacle I graduate the same so that ounces and fractions thereof may be read directly from the scale. As shown in Fig. 2, these graduation lines run at right angles to the spout 3, so that the amount of liquid contained may be read from the scale when the device is in a position to pour the contents from the spout.

In Fig. l I have shown a slightly difi'erout form of device, which may in some instances be preferred. The main dif erence consists in the receptacle, which, instead of being a complete spheroid as shown in Fig. 1, is merely a spheroidal bowl 1, having a fiat top 1. The same remarks, however, apply as to the center of curvature and the relative arrangement of the mouth and pump barrel. In this modification also T prefer to form the spout 3 at the bottom of the mouth piece, and also, the graduation lines on the bowl extend horizontally so as to correspond with the position of the spout.

In either form of device a great advantage as to cleaning will be apparent. By unscrewing the cap 6 and removing the piston, water may be forced through the device from end to end. thus thoroughly washing the same. It will be observed that there are no cracks, joints or complicated parts LOO in which objectionable matter may accumulate, but that the entire device is exceptionally simple and hygienic.

it will thus be seen that I have provided an exceedingly economic and convenient pump which lends itself Well to the various requirements of modern medical practice,

and it is thought that the numerous advantages of my improved device will be readily appreciated by those skilled in such matters.

What I claim is A breast pump comprising a receptacle of spheroidal shape, a funnel-shaped mouthpiece projecting outwardly from one side thereof, and an imperforate pump barrel extending fro-m the opposite side thereof,

the axes of said receptacle and mouthpiece being co-incident, and the pump barrel communicating with said receptacle at its center of curvature, all of said parts being formed integral from a single piece of glass, and the axis of the pump barrel being disposed at an angle to the axes of the mouthpiece and receptacle, whereby, when said receptacle is held substantially level, the pump barrel extends in such a direction that the pump may be conveniently manipulated. In testimony whereof I affix my signature, in presence of two witnesses.

JAMES TUCKERMAN EMOTT. Witnesses:

WILLIAM H. RATH, NATHANIEL L. FosTER.

Copies of this patent may be obtained for five cents each, by addressing the fCommissioner of Patents. Washington, D. C. 

